Home / 8,619.26-12,929.63-2,379.27

Finding the Fourth Proportional to 8,619.26, 12,929.63 and 2,379.27

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Solution

The fourth proportional to 8,619.26, 12,929.63 and 2,379.27 is: 3,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.26 : 12,929.63 = 2,379.27 : x
  2. Step 2: Convert to fraction form
    8,619.26/12,929.63 = 2,379.27/x
  3. Step 3: Cross multiply
    8,619.26x = 12,929.63 × 2,379.27
  4. Step 4: Simplify right side
    8,619.26x = 30,763,080.77
  5. Step 5: Solve for x
    x = 30,763,080.77/8,619.26
  6. Step 6: Final answer
    x = 3,569.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.